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Updated: Apr 21, 2026

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
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Optimization of integrated polarization filters.

Denis Gagnon, Joey Dumont, Jean-Luc Déziel

    Optics Letters
    |November 1, 2014
    PubMed
    Summary

    Engineered photonic lattices create compact polarization filters. These integrated devices achieve high polarization (98%) and transmission (75%), enabling tailored beam profiles for photonics applications.

    Area of Science:

    • Integrated photonics
    • Nanophotonics
    • Optical engineering

    Background:

    • Polarization filters are crucial optical components.
    • Existing filters can be bulky or inefficient.
    • Need for compact, high-performance polarization control in integrated systems.

    Purpose of the Study:

    • To design small footprint, integrated polarization filters.
    • To achieve high polarization degree and transmission efficiency.
    • To enable arbitrary transverse beam profile tailoring.

    Main Methods:

    • Utilizing engineered photonic lattices (rods-in-air for TE, holes-in-slab for TM).
    • Employing a parallel tabu search algorithm for lattice configuration optimization.
    • Simulating and designing integrated photonic devices.

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    Main Results:

    • Achieved maximum polarization degree up to 98%.
    • Demonstrated transmission efficiency greater than 75%.
    • Designs allow for logical filtering and arbitrary beam shaping.

    Conclusions:

    • Successfully designed efficient, compact integrated polarization filters.
    • Photonic lattices offer a versatile platform for polarization control.
    • Optimization algorithms are effective for integrated photonics design problems.